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Option
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Description
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Variable name
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The name to assign the variable. The name must begin with an alphabetic character. It can contain only alphabetic and numeric characters and underscores. The name cannot contain any spaces.
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Variable type
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Specifies the type of parameters to show in the Variable Data area in the Variables pane. Choices for the variable type are:
• Constant. When selected (default), Value is shown. In this field, you enter the variable value to use across all calculations. For more information, see Specifying the Value for a Constant Variable.
• Varies over Alternatives. When selected, a two-column table is shown. In it, you enter the value to use for each alternative. For more information, see Specifying Values for a Variable that Varies Over Alternatives.
• Varies Over Alternatives & Time Intervals. When selected, a three-column table is shown, In it, you enter the value to use for each interval/alternative combination. For more information, see Specifying Values for a Variable that Varies Over Alternatives and Time Intervals.
• Varies over Time Intervals. When selected, a two-column table is shown. In it. you enter the value to use for each time interval in the Variables pane. For more information, see Specify the Values for a Variable that Varies Over Time Intervals.
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Description
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Any optional comments or remarks about the variable.
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